Toward the Shannon Limit of Spectral Efficiency

Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division multiplexing (OFDM), together with polarization-divisio...

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Bibliographic Details
Published in:IEEE photonics journal 2011-04, Vol.3 (2), p.325-330
Main Authors: Yan, L.-S, Liu, X, Shieh, W
Format: Article
Language:English
Subjects:
Coherence
Fiber optics
OFDM
Optical fiber communication
Quadrature amplitude modulation
Shannon limit
spectral efficiency
Wireless communication
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Summary:Progress in high-capacity optical communication systems in 2010 is reviewed, with spectral efficiency (SE) as the main figure of merit. Advanced modulation formats, such as quadrature amplitude modulation (QAM) and orthogonal frequency-division multiplexing (OFDM), together with polarization-division multiplexing (PDM) and digital coherent detection, are playing key roles in approaching the Shannon limit of SE for optical fiber communication. Photonics is now entering into a new era of high SE on par with electronics (wireless), yet with orders of magnitude higher overall system capacity.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2011.2127468